Roll rod device for vehicle

Abstract

A roll rod device for a vehicle includes a mounting flange mounted to a vehicle body; a housing of a cylindrical shape integrally formed at the mounting flange; a roll rod having a first end coupled to the housing to be slid and moved and a second end on which a bush unit is mounted; and an attenuation unit mounted to the first end of the roll rod and attenuating a vibration and an impact force while being slid and moved, or being compressed and tensioned in an axis direction of the roll rod inside the housing.

What is claimed is: 
     
       1. A roll rod device for a vehicle comprising:
 a mounting flange; 
 a housing of a cylindrical shape integrally formed at the mounting flange; 
 a roll rod having a first end slidably coupled to the housing and a second end; and 
 an attenuation unit mounted to the first end of the roll rod so as to attenuate a vibration and an impact force when the attenuation unit is slid, or compressed and tensioned in an axis direction of the roll rod inside the housing, 
 the attenuation unit includes:
 a main rubber having a first end fixed to the first end of the roll rod; 
 a latching part integrally formed at a second end of the main rubber and having a supporting plate disposed therein; 
 a stopper ring mounted inside the housing; and 
 a pair of stopper rubbers mounted to an interior circumference of the housing at a position separate from the stopper ring toward the roll rod. 
 
 
     
     
       2. The roll rod device for the vehicle of  claim 1 , wherein:
 the roll rod includes: 
 a bush mounting part to which a bush unit is mounted; and 
 a rod part having a first end fixed to the bush mounting part and a second end to which the attenuation unit is mounted. 
 
     
     
       3. The roll rod device for the vehicle of  claim 2 , wherein:
 a latching end is integrally formed on an exterior circumference at the second end of the rod part. 
 
     
     
       4. The roll rod device for the vehicle of  claim 1 , wherein:
 the main rubber is adhered or injection-molded to the roll rod. 
 
     
     
       5. The roll rod device for the vehicle of  claim 4 , wherein:
 the supporting plate is inserted and injection-molded to the latching part. 
 
     
     
       6. The roll rod device for the vehicle of  claim 1 , wherein:
 the stopper ring is mounted to the housing through a ring groove formed at the interior circumference of the housing. 
 
     
     
       7. The roll rod device for the vehicle of  claim 1 , wherein:
 an exterior circumference of the pair of stopper rubbers is adhered to the interior circumference of the housing and is formed of an arc shape. 
 
     
     
       8. The roll rod device for the vehicle of  claim 7 , wherein:
 the pair of stopper rubbers are disposed to face each other at the interior circumference of the housing so that an insertion hole is arranged between the pair of stopper rubbers. 
 
     
     
       9. The roll rod device for the vehicle of  claim 8 , wherein:
 a pair of latching protrusions, each having a fan shape, protrude from both sides of an exterior circumference of the latching part and face each other so that the pair of latching protrusions respectively correspond to the pair of stopper rubbers.